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Finding the Fourth Proportional to 64,032.72, 88,359.60 and 41,372.64

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Solution

The fourth proportional to 64,032.72, 88,359.60 and 41,372.64 is: 57,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,032.72 : 88,359.60 = 41,372.64 : x
  2. Step 2: Convert to fraction form
    64,032.72/88,359.60 = 41,372.64/x
  3. Step 3: Cross multiply
    64,032.72x = 88,359.60 × 41,372.64
  4. Step 4: Simplify right side
    64,032.72x = 3,655,669,921.34
  5. Step 5: Solve for x
    x = 3,655,669,921.34/64,032.72
  6. Step 6: Final answer
    x = 57,090.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.